BPC 157 Mark Hyman, MD Christopher Mendias, PhD, gets four or five patient questions daily about peptides at his sports medicine practice in Phoenix, Arizona. BPC 157 is the most popular. That's because thousands of people are buying Thinking about BPC 157? Read this first. 5 things to know before your first reconstitution what it actually does, the standard dose, the rest day mistake most people skip, and the legal status BPC 157 Mark Hyman, MD